Some commonly used frameworks and mental models that can be applied to gap analysis for solution implementation:

行動力不足之六大原因

Following is about the questions to ask that every business must answer. It is extract on the chapter 13 of the book Zero to One by Peter Thiel:

The purpose of this article is to provide readers with a quick introduction to the domain of BPM and to point out some excellent readings on BPM and related topics.